# -*- coding: utf-8 -*-
# @Time    : 2021/4/17 0017 13:23
# @Author  : 蒋才果
# @Email   : 1476235300@qq.com
# @File    : 密码验证.py
# @Software: PyCharm
# ls = [('root','123456'),('zhangyang','20001114')]
# while 1:
#     username = input('请输入用户名：')
#     passwd = input("请输入密码：")
#     if (username,passwd) in ls:
#         print("登录成功")
#     else:
#         print('登录失败')